interaction

Dear community,
I did a linear mixed model full factorial with 2x2. I use the linear mixed model like an ANOVA and I have one significant main effect and a significant interaction effect.To solve the interaction I split my data by one variable and analyze the main effect by the other variable...

Hello everyone,
I would really appreciate some advice on how to interpret my SPSS-Output. I have tried to figure it out myself, but haven't been able to get an answer.
I have 2 binary independent variables and 1 dependent variable with 3 categorical outcomes. So a 2x2 Design.
In order to...

Y= alpha+ b1*x1 + b2*x2 + b3* x3 +b4*x4 + b5*dummy1*x1+b6*dummy1*x2 + b7*dummy1*x3 +b8*dummy1*x4
I run the correlation between all the regression variables and I found that all variables that are multiplied by dummy1 are highly correlated (correlation can reach up to 0.77). is this normal...

Dear all,
I am currently struggling with my masters-thesis on the subject of control variables or covariates in a repeated measures analysis.
I have a rather strait-forward 2x2 data-matrix:
2 dichotomous independent variables. (I will call them condition & treatment)
1 dependent...

First time posting here.
I have conducted a transcranial magnetic stimulation study and am analyzing the results as a 3x3 repeated measures ANOVA. I'm a grad student in cognitive psychology.
1. purpose of the study: to dissociate language from other forms of cognition using TMS.
2...

Suppose a dermatologist wants to study the effectiveness of two different preparations of a skin lotion using two different forms of application (for example, one vs. two applications per day). He has available 12 patients with a certain skin disease and he can apply one form of medication (that...

Hi, i've discovered a significant interaction in my 3x2 ANOVA in my psychology dissertation (3x2 Between Subjects Design, using SPSS). I was wondering which post-hoc analysis i should use to study this interaction. My tutor has provided us with example instructions, which involve splitting the...

So effectively I have two variables, language problems, and emotional problems, both of which independently cause an increase in a third variable, which is behaviour problems. I hypothesized that high emotional problems would significantly moderate the relationship between language problems and...

Hi!
I already used lots of search engines without finding an answer to my problem.
I am testing two methods for manipulating religious belief. For each of the methods there exists an experimental and a control group. So there are in total four groups (between-subject design).
My hypothesis...

Attached you will find a well known research paper. If you go to page 438 (page 9 of the pdf file) you will find a model where:
change in tax rate = b1xMiss + b2x Miss Amount +b3(Miss x Miss Amount) + controls
according to the model , firms play with their accounts in order to pay less...

Hello friends,
I've used a negative binomial GLM to look at how invertebrate abundance (over dispersed) is affected by seagrass density.
There is a negative interaction between seagrass density and epiphyte biomass (the little plants growing on seagrass blades that invertebrates eat)...

Hello,
I have found significant interaction effects when analyzing a negative binomial generalized linear regression model. However, I am not sure how to further explore the interaction. I am currently using SPSS. How can I conduct follow-up simple effects to examine the interactions? Can I...

Hey everyone. This is my first post here so please be kind to me :) .
For my thesis my aim is to run a moderation analysis between organizational commitment and training. My dependent variable is job satisfaction.
Org.commitment comes from 4 5-point likert-items, therefore I calculated the...

Hello,
I'm relatively new to R and have run into some problems. Hoping someone can help!
I'm using lme on a model with several, both within/between, categorical/continuous and fixed/random effects. I have 1 x fixed 2-level categorical between-subjects variable "group" (dose vs. placebo), 1...

We performed a multiple linear regression with valence (negative, positive and neutral) as independent variable, social curiosity as controll variable and recognition performance as our dependent variable.
No we got this graph (see attachments).
Do we have a main effect and interaction...

I was given data to work on for a lab report. I did a 2 x 2 between subjects ANOVA (if it matters n=187).
Main effect of IV1 was not significant.
Main effect of IV2 was not significant.
Interaction was not significant (although was .62 which I'm supposed to report as "marginally...

Hey people,
I am trying to find an appropriate mediation analysis method.
I want to investigate how an INTERACTION of two variables mediates the association of two different variables. I have read about mediation analysis with one or multiple mediators, but nothing about an interaction as the...

Hey people,
I am trying to find an appropriate mediation analysis method.
I want to investigate how an INTERACTION of two variables mediates the association of two different variables. I have read about mediation analysis with one or multiple mediators, but nothing about an interaction as the...

Hi,
I am stuggling to find the right words for the statistical terms I would like to look up. Hope, you can help :-)
I am looking at a higher order construct (organizational climate), which manifests in eight dimensions. I am interested in elaborating how these dimensions interact and what...

Hi everyone,
I have got a question regarding the specification of interaction effects in panel regressions (fixed effects within estimators).
I would like to know:
Can I create an interaction-term between a time-varying and a time-invariant variable?
Some background: My data is from...